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  • Time Travel 101

    - by Jim Duffy
    I’m thinking maybe I should have used Time Crunching 101 as the title instead… or maybe ‘Duh Duffy, where have you been? Everyone knows that!” Ok, so maybe you won’t actually learn how to travel through time from this post but you will learn how to cram more learning into one day. We all know you can’t make it to every conference, every presentation, or every training session. The good news is that many of those events make their content available to either watch online or to download for off-line viewing. The problem is who has time to sit and watch all those presentations in real time? Not me. One trick I use is to view the content at an increased play rate. Why listen to a boring speaker like me drone on for the entire length of the session when you can listen to them drone on in almost half the time. :-) I view nearly all off-line content with Windows Media Player though I’m sure you can implement this idea with any media playback software. The idea is changing the playback speed you view the content at. With Windows Media Player you can change the play speed from the menu system. Once you have the Play Speed Setting panel open you can specify the playback speed. Depending on the content and the presenter I can typically listen between 1.6 and 2.0 times normal speed. My Florida edumacation taught me that playing the video back at twice the speed means I’ll listen to it twice as fast and that means I can view it in almost 1/2 the time.  Too bad it won’t make me twice as smart. :-) I hope this helps you speed your way through more training content. Have a day. :-|

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  • How should I start with Lisp?

    - by Gary Rowe
    I've been programming for years now, working my way through various iterations of Blub (BASIC, Assembler, C, C++, Visual Basic, Java, Ruby in no particular order of "Blub-ness") and I'd like to learn Lisp. However, I have a lot of intertia what with limited time (family, full time job etc) and a comfortable happiness with my current Blub (Java). So my question is this, given that I'm someone who would really like to learn Lisp, what would be the initial steps to get a good result that demonstrates the superiority of Lisp in web development? Maybe I'm missing the point, but that's how I would initially see the application of my Lisp knowledge. I'm thinking "use dialect A, use IDE B, follow instructions on page C, question your sanity after monads using counsellor D". I'd just like to know what people here consider to be an optimal set of values for A, B, C and perhaps D. Also some discussion on the relative merit of learning such a powerful language as opposed to, say, becoming a Rails expert. Just to add some more detail, I'll be developing on MacOS (or a Linux VM) - no Windows based approaches will be necessary, thanks. Notes for those just browsing by I'm going to keep this question open for a while so that I can offer feedback on the suggestions after I've been able to explore them. If you happen to be browsing by and feel you have something to add, please do. I would really welcome your feedback. Interesting links Assuming you're coming at Lisp from a Java background, this set of links will get you started quickly. Using Intellij's La Clojure plugin to integrate Lisp (videocast) Lisp for the Web Online version of Practical Common Lisp (c/o Frank Shearar) Land of Lisp a (+ (+ very quirky) game based) way in but makes it all so straightforward

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  • Learning advanced java skills

    - by moe
    I've been programming in java for a while and I really like the language, I've mostly just done game programming, but I want to get a feel for some of the more commonly used api's and frameworks and just get a generally more well-rounded grasp of the language and the common libraries in the current job market. From what I found things like spring, hibernate, and GWT are pretty in demand right now. I looked at some tutorials online and they weren't hard to follow but I really felt like I had no context for what I was learning - I had no idea how any of it would be use in a real work environment. I know nothing can rival the benefit I'd get from actual work experience but that's not an option for me right now, I need another way to learn these technologies in a way where I'll at least feel comfortable working with them and know what I'm doing beyond just understanding what code does what. I checked out a few books but they were all really old(like pre-2006, am I right to assume those books would be kind of out of date today?) or required experience with libraries that I didn't have and can't get. I hate getting stuck looking for the best resource to learn something instead of spending my time actually learning. All I really want is someone to point me to a resource(website or ebook) that is aimed at already experienced java developers and will not only teach me some interesting useful java technology(anything that is useful, I dont know much outside of graphics libraries and game related things so I was thinking some database or web programming api's) but also give me a good perspective of it and leave me feeling confident that I could actually use what I learned on a practical application. If my post makes you think I'm not yet experienced to be learning these things, which I doubted earlier today but am now starting to question, then what do you think is the next step for me? I just want to get better at java. Thanks everyone

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  • The internal storage of a DATETIME2 value

    - by Peter Larsson
    Today I went for investigating the internal storage of DATETIME2 datatype. What I found out was that for a datetime2 value with precision 0 (seconds only), SQL Server need 6 bytes to represent the value, but stores 7 bytes. This is because SQL Server add one byte that holds the precision for the datetime2 value. Start with this very simple repro declare @now datetime2(7) = '2010-12-15 21:04:03.6934231'   select  cast(cast(@now as datetime2(0)) as binary(7)),         cast(cast(@now as datetime2(1)) as binary(7)),         cast(cast(@now as datetime2(2)) as binary(7)),         cast(cast(@now as datetime2(3)) as binary(8)),         cast(cast(@now as datetime2(4)) as binary(8)),         cast(cast(@now as datetime2(5)) as binary(9)),         cast(cast(@now as datetime2(6)) as binary(9)),         cast(cast(@now as datetime2(7)) as binary(9)) Now we are going to copy and paste these binary values and investigate which value is representing what time part. Prefix  Ticks       Ticks         Days    Days    Original value ------  ----------  ------------  ------  ------  -------------------- 0x  00  442801             75844  A8330B  734120  0x00442801A8330B 0x  01  A5920B            758437  A8330B  734120  0x01A5920BA8330B  0x  02  71BA73           7584369  A8330B  734120  0x0271BA73A8330B 0x  03  6D488504        75843693  A8330B  734120  0x036D488504A8330B 0x  04  46D4342D       758436934  A8330B  734120  0x0446D4342DA8330B 0x  05  BE4A10C401    7584369342  A8330B  734120  0x05BE4A10C401A8330B 0x  06  6FEBA2A811   75843693423  A8330B  734120  0x066FEBA2A811A8330B 0x  07  57325D96B0  758436934231  A8330B  734120  0x0757325D96B0A8330B Let us use the following color schema Red - Prefix Green - Time part Blue - Day part What you can see is that the date part is equal in all cases, which makes sense since the precision doesm't affect the datepart. What would have been fun, is datetime2(negative) just like round accepts a negative value. -1 would mean rounding to 10 second, -2 rounding to minute, -3 rounding to 10 minutes, -4 rounding to hour and finally -5 rounding to 10 hour. -5 is pretty useless, but if you extend this thinking to -6, -7 and so on, you could actually get a datetime2 value which is accurate to the month only. Well, enough ranting about this. Let's get back to the table above. If you add 75844 second to midnight, you get 21:04:04, which is exactly what you got in the select statement above. And if you look at it, it makes perfect sense that each following value is 10 times greater when the precision is increased one step too. //Peter

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  • Advice for someone moving from Windows / Coldfusion / Java to Linux / Ruby / Rails

    - by Ciaran Archer
    Hi all I am thinking of undertaking a serious career move. Currently I work day to day with ColdFusion 9+, and some Java in a Windows environment. My background is Java/JSP etc prior to ColdFusion. I'm considering a move towards Ruby / Rails on Linux as I think it would be a real challenge, keep things fresh and would stand me in good stead for the next few years. There are also more jobs in this area. I would consider myself an experienced web professional. I do TDD and I understand good OO design concepts. I have worked for the past few years on a busy transactional gaming website with all the security and performance challenges that entails. I have also contributed to an open source ColdFusion project recently and I am a active member of the CF community on StackOverflow . In order to maintain my current remuneration (!) etc. I would like to get up to speed on Ruby / Rails and Linux before I go job hunting. The idea is that I can demonstrate enough proficiency in these new skills and combined with my other language / programming / architectural and performance experience I have I'll be a good candidate. I am building a personal website in Rails 3.0 on Ubuntu which I hope will expose me to lots of Rails/Ruby and I am reading a few books. What else can I do? Has anyone made this type of move, and if so would they have any tips apart from what I've mentioned? Is there any areas around Rails/Ruby/Linux that I have to get up to speed with? Any and all tips are appreciated.

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  • Converting 2D coordinates from multiple viewpoints into 3D coordinates

    - by Kirk Smith
    Here's the situation. I've got a set of 2D coordinates that specify a point on an image. These 2D coordinates relate to an event that happened in a 3D space (video game). I have 5 images with the same event point on it, so I have 5 sets of 2D coordinates for a single 3D coordinate. I've tried everything I can think to translate these 2D coordinates into 3D coordinates, but the math just escapes me. I have a good estimate of the coordinates from which each image was taken, they're not perfect but they're close. I tried simplifying this and opening up Cinema 4D, a 3D modeling application. I placed 5 cameras at the coordinates where the pictures were taken and lined up the pictures with the event points for each one and tried to find a link, but nothing was forthcoming. I know it's a math question, but like I said, I just can't get it. I took physics in high school 6 years ago, but we didn't deal with a whole lot of this sort of thing. Any help will be very much appreciated, I've been thinking on it for quite a while and I just can't come up with anything.

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  • Enterprise Architecture IS (should not be) Arbitrary

    - by pat.shepherd
    I took a look at a blog entry today by Jordan Braunstein where he comments on another blog entry titled “Yes, “Enterprise Architecture is Relative BUT it is not Arbitrary.”  The blog makes some good points such as the following: Lock 10 architects in 10 separate rooms; provide them all an identical copy of the same business, technical, process, and system requirements; have them design an architecture under the same rules and perspectives; and I guarantee your result will be 10 different architectures of varying degrees. SOA Today: Enterprise Architecture IS Arbitrary Agreed, …to a degree….but less so if all 10 truly followed one of the widely accepted EA frameworks. My thinking is that EA frameworks all focus on getting the business goals/vision locked down first as the primary drivers for decisions made lower down the architecture stack.  Many people I talk to, know about frameworks such as TOGAF, FEA, etc. but seldom apply the tenants to the architecture at hand.  We all seem to want to get right into the Visio diagrams and boxes and arrows and connecting protocols and implementation details and lions and tigers and bears (Oh, my!) too early. If done properly the Business, Application and Information architectures are nailed down BEFORE any technological direction (SOA or otherwise) is set.  Those 3 layers and Governance (people and processes), IMHO, are layers that should not vary much as they have everything to do with understanding the business -- from which technological conclusions can later be drawn. I really like what he went on to say later in the post about the fact that architecture attempts to remove the amount of variance between the 10 different architect’s work.  That is the real heart of what EA is about; REMOVING THE ARBRITRARITY.

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  • SQL SERVER – A Funny Cartoon on Index

    - by pinaldave
    Performance Tuning has been my favorite subject and I have done it for many years now. Today I will list one of the most common conversation about Index I have heard in my life. Every single time, I am at consultation for performance tuning I hear following conversation among various team members. I want to ask you, does this kind of conversation happens in your organization? Any way, If you think Index solves all of your performance problem I think it is not true. There are many other reason one has to consider along with Indexes. For example I consider following various topic one need to understand for performance tuning. ?Logical Query Processing ?Efficient Join Techniques ?Query Tuning Considerations ?Avoiding Common Performance Tuning Issues Statistics and Best Practices ?TempDB Tuning ?Hardware Planning ?Understanding Query Processor ?Using SQL Server 2005 and 2008 Updated Feature Sets ?CPU, Memory, I/O Bottleneck Index Tuning (of course) ?Many more… Well, I have written this blog thinking I will keep this blog post a bit easy and not load up. I will in future discuss about other performance tuning concepts. Let me know what do you think about the cartoon I made. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Humor, SQL Index, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • Design pattern for procedural terrain assets

    - by Alex
    I'm developing a procedural terrain class at the moment and am stuck on the correct design pattern. The terrain is 2D and is constructed from a series of (x,y) points. I currently have a method that just randomly adds points to an array of points to generate a random spread of points. However I need a more elaborate system for generating the terrain. The terrain will be built form a series of re-accuring terrain structures eg. a pit, jump, hill etc. Each structure will have some randomness assigned to it, each height of hill will be random, pit size will be random etc. Each terrain structure will have: A property detailing the number of points making up that structure A method for generating the points (not absolutely necessary) My current thinking is to have a class for each terrain structure, create a fixed amount of terrain elements ahead of the player, loop over these and add the corresponding points to the game. What is the best way to create these procedural terrain structures when they are ultimately just a set of functions for generating terrain elements? Is a class for each terrain element excessive? I'm developing the game for iphone so any objective-c related answers would be welcome.

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  • How to learn & introduce scrum in small startup?

    - by Jens Bannmann
    In a few months, a friend will establish his startup software company, and I will be the software architect with one additional developer. Though we have no real day-to-day experience with agile methods, I have read much "overview" type of material on them, and I firmly believe they are a good - if not the only - way to build software. So with this company, I want to go for iterative, agile development from day 1, preferably something light-weight. I was thinking of Scrum, but the question is: what is the best way for me and my colleagues to learn about it, to introduce it (which techniques when etc) and to evaluate whether we should keep it? Background which might be relevant: we're all experienced developers around the same age with similar professional mindset. We have worked together in the past and afterwards at several different companies, mostly with a Java/.NET focus. Some are a bit familiar with general ideas from the agile movement. In this startup, I have great power over tools, methods and process. The startup's product will be developed from scratch and could be classified as middleware. We have some "customer" contacts in the industry who could provide input as soon as we get to an alpha stage.

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  • How to Make Sure Your Company Doesn't Go Underwater If Your Programmers Are Hit by a Bus

    - by Graviton
    I have a few programmers under me, they are all doing very great and very smart obviously. Thank you very much. But the problem is that each and every one of them is responsible for one core area, which no one else on the team have foggiest idea on what it is. This means that if anyone of them is taken out, my company as a business is dead because they aren't replaceable. I'm thinking about bringing in new programmers to cover them, just in case they are hit by a bus, or resign or whatever. But I afraid that The old programmers might actively resist the idea of knowledge transfer, fearing that a backup might reduce their value. I don't have a system to facilitate technology transfer between different developers, so even if I ask them to do it, I've no assurance that they will do it properly. My question is, How to put it to the old programmers in such they would agree What are systems that you use, in order to facilitate this kind of "backup"? I can understand that you can do code review, but is there a simple way to conduct this? I think we are not ready for a full blown, check-in by check-in code review.

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  • Selling Android apps from Latvia? or should I just put banners?

    - by Roger Travis
    I am in Latvia ( which is not supported to sell apps at android market ), so I am thinking about the best way of monetizing my app. So far I've come up with such options: somehow imitate that I am from a supported country, get a bank account there, etc. use PayPal for in-app purchases. The player get, say, first 10 levels for free, but then is asked to pay 0.99$ for the rest of the game. downsides: player might not feel comfortable entering his paypal details into an app. also android market might not really like that. making the app free and get money from advertising... let's do some calculation here, say, I get 1m free downloads, each user during his playtime would see 10 banners, therefor 10m / 1000 * 0.3 = gives roughly 33k$ ( if we use adMob with their 0.3$ per 1000 impressions ). On the other hand, if we use paypal in app purchase, we need a 3% or more conversion rate to beat this... hmm... What do you think about all this? Thanks! edit: from what I just read all over the net, it looks like advertisers will change their eCPM price a lot without you understanding why... while using in-app paypal purchase you can at least somehow monitor the cashflow.

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  • Is it possible to implement an infinite IEnumerable without using yield with only C# code?

    - by sinelaw
    This isn't a practical problem, it's more of a riddle. Problem I'm curious to know if there's a way to implement something equivalent to the following, but without using yield: IEnumerable<T> Infinite<T>() { while (true) { yield return default(T); } } Rules You can't use the yield keyword Use only C# itself directly - no IL code, no constructing dynamic assemblies etc. You can only use the basic .NET lib (only mscorlib.dll, System.Core.dll? not sure what else to include). However if you find a solution with some of the other .NET assemblies (WPF?!), I'm also interested. Don't implement IEnumerable or IEnumerator. Notes The closest I've come yet: IEnumerable<int> infinite = null; infinite = new int[1].SelectMany(x => new int[1].Concat(infinite)); This is "correct" but hits a StackOverflowException after 14399 iterations through the enumerable (not quite infinite). I'm thinking there might be no way to do this due to the CLR's lack of tail recursion optimization. A proof would be nice :)

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  • An XML file or Database?

    - by webnoob
    I am re-writing a section of my site and am trying to decide how much of a rewrite this will be. At the moment I have a web service feed that generates an xml once per day. I then use this xml file on my website to generate the general structure. I am trying to decide if this information should be located in the database or stay in the xml file. The file can range from 4mb - 12mb. The files depth can go on and on so I have to recurse to find the data I want. I use the .NET serializer classes and store the serialized file in a global variable to avoid re-serializing it each time the page is loaded. My reasons for thinking a database would be better are: I would know exactly where I am in the file by using an internal ID so I wouldn't have to recurse the file to get information. I wouldn't have to load / serialize the XML and could just use my already open database connections. Searching for the data in the file would be quicker(?) as I would just perform an SQL query rather than re-cursing the file. Has anyone got any ideas which is better and which option uses more resources on the server or be quicker? EDIT: The file is read every time the web page is loaded (although only serialized once). It isn't written to by standard users (only by an admin task that runs in the middle of the night). This is my initial investigation before mocking up.

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  • Partnering with your Applications – The Oracle AppAdvantage Story

    - by JuergenKress
    So, what is Oracle AppAdvantage? A practical approach to adopting cloud, mobile, social and other trends A guided path to aligning IT more closely with business objectives Maximizing the value of existing investments in applications A layered approach to simplifying IT, building differentiation and bringing innovation All of the above? Enhance the value of your existing applications investment with #Oracle #AppAdvantage Aligning biz and IT expectations on Simplifying IT, building Differentiation and Innovation #AppAdvantage Adopt a pace layered approach to extracting biz value from your apps with #AppAdvantage Bringing #cloud, #social, #mobile to your apps with #Oracle #AppAdvantage Embracing Situational IT In the next IT Leaders Editorial, Rick Beers discusses the necessity of IT disruption and #AppAdvantage. Rick Beers sheds light on the Situational Leadership and the path to success #AppAdvantage. Rick Beers draws parallels with CIO’s strategic thinking and #Oracle #AppAdvantage approach. Do you have this paper in your summer reading list? Aligning biz and IT #AppAdvantage What does Situational leadership have to do with Oracle AppAdvantage? Catch the next piece in Rick Beers’ monthly series of IT Leaders Editorial and find out. #AppAdvantage Middleware Minutes with Howard Beader – August edition In the quarterly column, @hbeader discusses impact of #cloud, #mobile, #fastdata on #middleware Making #cloud, #mobile, #fastdata a part of your IT strategy with #middleware What keeps the #oracle #middleware team busy? Find out in the inaugural post in quarterly update on #middleware Recent #middleware news update along with a preview of things to come from #Oracle, in @hbeader ‘s quarterly column In his inaugural post, Howard Beader, senior director for Oracle Fusion Middleware, discusses the recent industry trends including mobile, cloud, fast data, integration and how these are shaping the IT and business requirements. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: AppAdvantage,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • An introductory presentation about testing with MSTest, Visual Studio, and Team Foundation Server 2010

    - by Thomas Weller
    While it was very quiet here on my blog during the last months, this was not at all true for the rest of my professional life. The simple story is that I was too busy to find the time for authoring blog posts (and you might see from my previous ones that they’re usually not of the ‘Hey, I’m currently reading X’ or ‘I’m currently thinking about Y’ kind…). Anyway. Among the things I did during the last months were setting up a TFS environment (2010) and introducing a development team to the MSTest framework (aka. Visual Studio Unit Testing), some additional tools (e.g. Moq, Moles, White),  how this is supported in Visual Studio, and how it integrates into the broader context of the then new TFS environment. After wiping out all the stuff which was directly related to my former customer and reviewing/extending the Speaker notes, I thought I share this presentation (via Slideshare) with the rest of the world. Hopefully it can be useful to someone else out there… Introduction to testing with MSTest, Visual Studio, and Team Foundation Server 2010 View more presentations from Thomas Weller. Be sure to also check out the slide notes (either by viewing the presentation directly on Slideshare or - even better - by downloading it). They contain quite some additional information, hints, and (in my opinion) best practices.

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  • links for 2010-04-29

    - by Bob Rhubart
    AS11 Oracle B2B Sync Support - Series 1 (Oracle Fusion Middleware - B2B Team Blog) Sinkarbabu Kirubanithi with part 1 of a planned 3-part series on synchronous message support in Oracle B2B 11g. (tags: oracle otn fusionmiddleware b2b) Java 2 Go!: How to write a simple yet “bullet-proof” object cache "So, while we were thinking hard to come up with the most efficient, generic and elegant way of finally implementing our weak and soft caches, Mr. Eric Chan, who is one of the main architects in Oracle Beehive team, had a very interesting breakthrough. In short terms, he thought of a very nice way of combining both WeakReference and SoftReference in our weak and soft caches so that they would provide exactly the same functionality without having to deal with those reference queues at all. Basically, instead of using a plain HashMap as our backing storage, we used a java.util.WeakHashMap in both our cache implementations. The hat trick was what and how to store things in it." - Eduardo Rodrigues (tags: oracle java sun) @jamet123: First Look – Oracle Data Mining "[Oracle Data Mining] is a nice product for Oracle database customers and well worth looking into. The new UI will only make it more so." James Taylor (tags: oracle otn datamining database) Live Webcast: Social BPM: Integrating Enterprise 2.0 with Business Applications #oracle Peggy Chen and Dan Tortorici show you how to take your business to the next level with a unified solution that fosters process-based collaboration between employees, partners, and customers. Wednesday, May 12, 2010 at 11:00am PT / 2:00pm ET (tags: oracle otn enterprise2.0 webcast)

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  • How to deal with static utility classes when designing for testability

    - by Benedikt
    We are trying to design our system to be testable and in most parts developed using TDD. Currently we are trying to solve the following problem: In various places it is necessary for us to use static helper methods like ImageIO and URLEncoder (both standard Java API) and various other libraries that consist mostly of static methods (like the Apache Commons libraries). But it is extremely difficult to test those methods that use such static helper classes. I have several ideas for solving this problem: Use a mock framework that can mock static classes (like PowerMock). This may be the simplest solution but somehow feels like giving up. Create instantiable wrapper classes around all those static utilities so they can be injected into the classes that use them. This sounds like a relatively clean solution but I fear we'll end up creating an awful lot of those wrapper classes. Extract every call to these static helper classes into a function that can be overridden and test a subclass of the class I actually want to test. But I keep thinking that this just has to be a problem that many people have to face when doing TDD - so there must already be solutions for this problem. What is the best strategy to keep classes that use these static helpers testable?

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  • How to implement Facebook leaderboard game for mobile?

    - by TrueGrime
    I am in the final stages of developing an indie C# mobile game that I will deploy to iPhones and Androids using Mono. I wish to add push notifications and a Facebook leader board feature into the game, such that the user will be presented with a list of all his/her friends that are playing the game and their weekly scores in the main screen. I have ZERO experience with web development/networking/databases. I recently started researching the field and formed a basic understanding. Facebook has SDKs in PHP, JavaScript, obj-c and java, tho reading the documentation examples still feels cryptic to me since it involves web/server tech. After researching some more, I understood that my options for server side are basically PHP or ASP.Net. It seems that ASP.Net is more favorable in my case since I am already proficient with C# (but there is no ASP.net SDK from Facebook... I am not sure if this implies that I cant interact with Facebook using ASP.Net). On the down side some have mentioned higher costs for ASP.Net, tho I havent looked further into that aspect yet. I also understood that JavaScript is client side technology. I started going through tutorials of ASP.Net, I was thinking that ASP.Net is a purely server side management language, but it started feeling more like WPF as those tutorials started getting into very lengthy discussions about creating website interfaces and styles. I am not interested in that, I just want to have a web server which my app can somehow communicate with and get friends/scores. Am I learning the right technologies for my goal? should I be learning something else? I am posting this in hopes that someone who knows this field well can see through my problem and help guide me, otherwise I could spend months studying something that might not be the right solution to my goal. Thanks.

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  • "Integratable" but not "integrated" GPL

    - by mgibsonbr
    There has been much debate over whether or not merely linking to a piece of code makes it a derivative work. I know FSF says "yes", so according to them I can't dynamically link a non-GPL compatible program to a GPL library and distribute the whole. But I could do that for private use, as long as no code is released to the public. That made me wonder: what if I don't redistribute the GPL code at all? If my program can work alone (reinforcing my claim that it's not a derivative work), but can do more if the GPL library is also installed to the system, couldn't I just release my application under my own licensing terms - without including any GPL code - and post instructions for anyone interested to separately download the GPL code and do the integration "for their private use"? I know it's against the "spirit" of the GPL, so I'm not suggesting it's a good idea to do that. However, this question is bugging me for some time, specially because of the implications of each answer: If I can not do that: can I write another library with a similar API? (before answering "of course you can", remember that having the same API would allow both libraries to be swapped at will by my customers - so I don't need to work too hard on my library or even make it "working". How to determine if a similar program is just similar or is a circumvention attempt?) If I can do that: can I also be paid to perform the service of installing the GPL library for a customer? (I sell them my program, install it in their machines, download and install the GPL library too) can I put the two programs in the same website? In two different CDs? (I know I said the idea was not to redistribute the GPL code, I'm just thinking in excuses people could use to claim they're not redistributing even though they are)

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  • Setting up Google Analytics for multiple subdomains

    - by Andrew G. Johnson
    so first here's a snippet of my current Analytics javascript: var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-30490730-1']); _gaq.push(['_setDomainName', '.apartmentjunkie.com']); _gaq.push(['_setSiteSpeedSampleRate', 100]); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0];s.parentNode.insertBefore(ga, s); })(); So if you wanna have a quick peak at the site the url is ApartmentJunkie.com, keep in mind the site is pretty bare bones but you'll get the idea -- basically it's very similar to craigslist in the sense that it's in the local space so people pick a city then get sent to a subdomain that is specific for that city, e.g. winnipeg.mb.apartmentjunkie.com. I put that up late last night then had a look at the analytics and found that I am seeing only the request uri portion of the URLs in analytics as I would with any other site only with this one it's a problem as winnipeg.mb.apartmentjunkie.com/map/ and brandon.mb.apartmentjunkie.com/map/ are two different pages and shouldn't be lumped together as /map/ I know the kneejerk response is likely going to be "hey just setup a different google analytics profile for each subdomain" but there will eventually be a lot of subdomains so google's cap of 50 is going to be too limited and even more important I want to see the data in aggregate for the most part. I am thinking of making a change to the javascript, to something like: _gaq.push(['_trackPageview',String(document.domain) + String(document.location)]); But am unsure if this is the best way and figured someone else on wm.se would have had a similar situation that they could talk a bit about.

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  • Managing user privileges, best practice.

    - by Loïc N.
    I'm am new to web development. I'm creating a website where different user can have different privileges, such as creating/editing/deleting a news, or adding/editing/deleting whatever kind of content on the website. I started by creating a "user type" that would indicate the user's privileges (such as "user", "newser", "moderator", "admin", and so on), but i quickly started noticing issues that made me think that this might be a naive approach to this issue. What if i want to give a regular user the right to edit a news (for whatever reason)? Then the user would be half "user", half "newser". But the system i use can only handle one user-type. So what would be the best practice here? I was thinking of removing the concept of roles (or "user-types" such as newser) and only have the concept of "privilege", where every user could have zero to many privileges. So, to re-use the above example, if i wanted a user to have the right to edit some news, i would only have to give him a "edit news" privilege. Is this the way to go?

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  • UPK and the Oracle Unified Method can be used to deploy Oracle-Based Business Solutions

    - by Emily Chorba
    Originally developed to support Oracle's acquisition strategy, the Oracle Unified Method (OUM) defines a common implementation language across all of Oracle's products and technologies. OUM is a flexible, scalable, and evolving body of knowledge that combines existing best practices and field experience with an industry standard framework that includes the latest thinking around agile implementation and cloud computing.    Strong, proven methods are essential to ensuring successful enterprise IT projects both within Oracle and for our customers and partners. OUM provides a collection of repeatable processes that are the basis for agile implementations of Oracle enterprise business solutions. OUM also provides a structure for tracking progress and managing cost and risks. OUM is applicable to any size or type of IT project. While OUM is a plan-based method—including overview material, task and artifact descriptions, and templates—the method is intended to be tailored to support the appropriate level of ceremony (or agility) required for each project. Guidance is provided for identifying the minimum subset of tasks, tailoring the approach, executing iterative and incremental planning, and applying agile techniques, including support for managing projects using Scrum. Supplemental guidance provides specific support for Oracle products, such as UPK. OUM is available to Oracle employees, partners, and customers. Internal Use at Oracle: Employees can download OUM from MyDesktop. OUM Partner Program: OUM is available free of charge to Oracle PartnerNetwork (OPN) Diamond, Platinum, and Gold partners as a benefit of membership. These partners may download OUM from the Oracle Unified Method Knowledge Zone on OPN. OUM Customer Program: The OUM Customer Program allows customers to obtain copies of the method for their internal use by contracting with Oracle for a services engagement of two weeks or longer. Customers who have a signed contract with Oracle and meet the engagement qualification criteria as published on Customer tab of the OUM Website, are permitted to download the current release of OUM for their perpetual use. They may obtain subsequent releases published during a renewable, three-year access period To learn more about OUM, visit OUM Blog OUM on LinkedIn OUM on Twitter Emily Chorba, Principle Product Manager, Oracle User Productivity Kit

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  • 2D Side Scrolling game and "walk over ground" collision detection

    - by Fire-Dragon-DoL
    The question is not hard, I'm writing a game engine for 2D side scrolling games, however I'm thinking to my 2D side scrolling game and I always come up with the problem of "how should I do collision with the ground". I think I couldn't handle the collision with ground (ground for me is "where the player walk", so something heavily used) in a per-pixel way, and I can't even do it with simple shape comparison (because the ground can be tilted), so what's the correct way? I'know what tiles are and i've read about it, but how much should be big each tile to not appear like a stairs?Are there any other approach? I watched this game and is very nice how he walks on ground: http://www.youtube.com/watch?v=DmSAQwbbig8&feature=player_embedded If there are "platforms" in mid air, how should I handle them?I can walk over them but I can't pass "inside". Imagine a platform in mid air, it allows you to walk over it but limit you because you can't jump in the area she fits Sorry for my english, it's not my native language and this topic has a lot of keywords I don't know so I have to use workarounds Thanks for any answer Additional informations and suggestions: I'm doing a game course in this period and I asked them how to do this, they suggested me this approach (a QuadTree): -All map is divided into "big nodes" -Each bigger node has sub nodes, to find where the player is -You can find player's node with a ray on player position -When you find the node where the player is, you can do collision check through all pixels (which can be 100-200px nothing more) Here is an example, however i didn't show very well the bigger nodes because i'm not very good with photoshop :P How is this approach?

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  • JavaScript objects and Crockford's The Good Parts

    - by Jonathan
    I've been thinking quite a bit about how to do OOP in JS, especially when it comes to encapsulation and inheritance, recently. According to Crockford, classical is harmful because of new(), and both prototypal and classical are limited because their use of constructor.prototype means you can't use closures for encapsulation. Recently, I've considered the following couple of points about encapsulation: Encapsulation kills performance. It makes you add functions to EACH member object rather than to the prototype, because each object's methods have different closures (each object has different private members). Encapsulation forces the ugly "var that = this" workaround, to get private helper functions to have access to the instance they're attached to. Either that or make sure you call them with privateFunction.apply(this) everytime. Are there workarounds for either of two issues I mentioned? if not, do you still consider encapsulation to be worth it? Sidenote: The functional pattern Crockford describes doesn't even let you add public methods that only touch public members, since it completely forgoes the use of new() and constructor.prototype. Wouldn't a hybrid approach where you use classical inheritance and new(), but also call Super.apply(this, arguments) to initialize private members and privileged methods, be superior?

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